ARQ Market Cap History — Arq Capitalization Over Time

As of 5/4/2026 Arq has a market cap of 105.17 million. Investors often follow the ARQ market cap history to compare the size of the company over time.

This page shows ARQ market capitalization trends over time, with 11 market cap datapoints presented, dating back to 11/2/2023.

Quick links: Market Cap History Table  |  Market Cap History Chart  |  About Arq
ARQ Market Cap History



Below is a table of the ARQ market cap history going back to 11/2/2023:

Date ARQ Market Cap
11/2/202358.40M
3/5/2024117.66M
5/2/2024266.43M
8/8/2024205.21M
11/5/2024250.93M
3/3/2025205.45M
5/5/2025173.91M
8/7/2025264.26M
11/3/2025281.78M
3/5/2026145.69M
5/4/2026105.17M

Also see: ARQ Shares Outstanding History
and ARQ YTD Return
ARQ Historical Market Cap:
+26.48% CAGR
ARQ Historical Market Cap: +26.48% CAGR

Mouse over chart for data details
11/2/20233/5/20245/2/20248/8/202411/5/20243/3/20255/5/20258/7/202511/3/20253/5/20265/4/2026
Arq, Inc. is an environmental technology company. Co. is principally engaged in the sale of consumable air, water, and soil treatment solutions including activated carbon (AC) and chemical technologies. Its AC products enable customers to reduce air, water, and soil contaminants, including mercury, per-and polyfluoroalkyl substances (PFAS) and other pollutants to meet the challenges of air quality and water regulations. It manufactures and sells AC and other chemicals used to capture and remove contaminants for the coal-fired power generation, industrial, municipal water and air, water and soil treatment and remediation markets. We show 11 historical shares outstanding datapoints in our ARQ shares outstanding history coverage, used to compute ARQ market cap on those dates.

Understanding the changing numbers of shares outstanding, the changing share price, and the resulting changing ARQ market cap history over the course of time is important for investors interested in comparing ARQ's market cap history versus its peers. Many "beginner" or "novice" investors will look at one stock trading at a price of $10 per share and another trading at a price of $20 per share and think the latter company is worth twice as much. Of course, that is a completely meaningless comparison without also knowing how many shares outstanding there are for each of the two companies, and then calculating their respective market caps. Comparing the share price of ARQ versus a peer is one thing; comparing ARQ market cap versus a peer is a completely different story. Furthermore, via fluctuation both in per-share price and in the number of shares outstanding (via issuance of new shares over time, the repurchase of existing shares), the market cap for a company like ARQ can fluctuate over the course of history. With this page we aim to empower investors researching ARQ by allowing them to research the ARQ market cap history.
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Arq (ARQ) is categorized under the Materials sector; to help you further research historical market cap numbers, below are some other companies in the same sector:

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